38.4V 44Ah Application Scenario

38.4V 44Ah( discharge current 55A) Product Parameter:

NO.	Item	Specifications
4.1	Nominal capacity	27500mAh	0.2C Discharge (25±3℃ 0.2C)
	Minimum capacity	27500mAh
4.2	Rated voltage	38.4V
4.3	Charge current	Standard Charge: 0.2C Rapid charge: 0.5C
4.4	Standard Charging method	0.2C CC (constant current) charge to 43.8V,then CV(constant voltage 43.8V)charge till charge current decline to ≤0.02C
4.5	Charging time	Standard Charging Approximate: 6.0 hours Rapid charge: Approximate 3hours
4.6	Max.charge current	Constant Current 0.5C5A Constant Voltage 43.8V 0.02 C5Acut-off
4.7	Max.discharge current	Moment current 30.0A, end voltage27.6V
4.8	Standard Discharge Current	Constant current 0.2, end voltage27.6V
4.9	Discharge cut-off voltage	27.6V±1V
4.10	Charge cut-off Voltage	43.8±0.05V
4.11	Cell Impedance	≤10mΩ
4.12	PACK Impedance	≤100mΩ
4.13	Weight	Approx: 10.2Kg
4.14	Operating temperature	Charging: 0℃~65℃ Discharging: -20℃~65℃
4.15	Storage temperature	25±3℃
4.16	Storage Humidity	45% ～ 85% RH
4.17	Appearance	Without scratch, distortion, contamination and leakage
4.18	Standard environmental condition	Temperature Humidity Atmospheric Pressure	25±3℃ 45-85%RH 86-106 Kpa

Cell Specification

No.	Item	Specifications		Remark
1	Nominal Capacity	5500mAh		0.5C Discharge (25±3℃ 0.5C)
2	Minimum Capacity	5500mAh		0.5C Discharge (25±3℃ 0.5C)
3	Nominal Voltage	3.2V		Mean Operation Voltage
4	Delivery voltage	3.15-3.25V		Within 10 days from Factory
5	Charge Voltage	3.65±0.03V		By standard charge method
6	Standard charging method	0.5C constant current,3.65V constant voltage charge to 3.65V,continue charging till current decline to ≤0.01C
7	Charge current	0.5C	2750mA	Standard charge, charge time about3h(Ref)
7	Charge current	1.0C	5500mA	Rapid Charge, charge time about:2h(Ref)
8	Standard discharging method	0.5C constant current discharge to2.0V		0.5C CC to 2.0V
9	Cell Internal Impedance	≤10mΩ		Internal resistance measured at AC1KHZ after 50% charge
10	Maximum charge current	1C	5500mA	For continuous charging mod
11	Operation Temperature and relative humidity Range	Charge	0~65℃ 60±25%R.H.	Charge at a very low temperature such as blew 0℃,will be get a lower capacity and reduce cycle life of the battery
11	Operation Temperature and relative humidity Range	Discharge	-20~65℃ 60±25%R.H.
12	Storage temperature for a long time	-5~35℃ 60±25%R.H.		Do not storage exceed half year. Must charge once when storage for half year. Must charge the battery which with protect circuit when storage for three months.